BoatAttack/Assets/Scripts/Effects/RandomHue.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace BoatAttack
{
    /// <summary>
    /// Simple scripts sets a random HUE on a shader with the property '_Hue'
    /// </summary>
    public class RandomHue : MonoBehaviour
    {
        void OnValidate()
        {
            float hue = Random.Range(0f, 1f);
            MaterialPropertyBlock mtb = new MaterialPropertyBlock();
            mtb.SetFloat("_Hue", hue);
            GetComponent<MeshRenderer>().SetPropertyBlock(mtb);
        }
    }
}